Heating system for engines.



J. A. SUMMERS.

HEATING SYSTEM FOR ENGINES.

APPLICATION FILED MAR- 7. I914 Patented Nov. 9, 1915.

MIIIIIIIIIH a COLUMBIA PLANOGII.\PH CO WASHlNG'NJN. D, C.

JOHN A. SOMMERS, OF PLENTYWOOD, MONTANA.

HEATING SYSTEM FOR ENGINES.

Specification of Letters Patent.

Patented Nov. 9, 1915.

Application filed March 7, 1914. Serial No. 822,146.

To all whom it may concern:

Be it known that I, JOHN A. SoMMnns, citizen of the United States,residing at Plentywood, in the county of Sheridan and State of Montana,have invented certain new and useful Improvements in Heating Systems forEngines, of which the following is a specification.

This invention relates to feed water heaters for traction engine boilersand it has for its object the provision of an improved device of thischaracter adapted to be located in the smoke box of the boiler and toheat the feed water by utilizing the otherwise waste products ofcombustion before they pass through the stack.

A further object of the invention is to provide a mud drum also locatedin the smoke box where it will be acted upon by the heated products ofcombustion, said mud drum and the heating element for the feed waterbeing so located that they will not interfere with the proper cleaningof the boiler tubes.

Further objects and advantages of the invention will be set forth in thedetailed description which now follows:

In the accompanying drawing Figure 1 is a side elevation of a tractionengine boiler having the improved water heater applied thereto, Fig. 2is a partial longitudinal sectional view through said boiler, and Fig. 3is a transverse sectional view upon line 33 of Fig. 2 looking in thedirection indicated by the arrow.

Like numerals designate corresponding parts in all of the figures of thedrawing.

Referring to the drawing the numeral 5 designates a traction engineboiler having the usual fire tubes 6. These tubes terminate short of thefront end of the boiler shell 7 so that a smoke box 8 is provided in theusual and well known manner. this smoke box and above the lineof thefire tubes, is a coil 9. A pipe 10 leads from this coil to the feed pump11 and this feed pump is supplied through pipe'l2 froma water tank 13located at the rear of the boiler. A check valve 1 1 and cut off valve15 are provided in the pipe 10 and pipe 16, the

latter pipe leading from a mud drum 17 located within the smoke box andconforming closely to the shape of the wall of said smoke box, see Fig.3. Pipe 16 leads from the upper portion of the mud drum and the coil islikewise connected with the upper Located in portion of the mud drum'at18 by virtue of which construction any mud or other sediment in thewater will, when it sinks to the bottom of the mud drum, be out of theline of the travel of the water between pipes 18 and 16. from the bottomof the mud drum and is provided with a drain valve 20. The water isdrawn from tank 13 through pipe 12 by.

pump 11, and is discharged from pump 11 through 10 and coil 9 to the muddrum 17. It passes from the mud drum through the pipe 16 and enters theboiler at 21. It is apparent therefore that during this passage of thewater through the coil 9 and mud drum 1?, the water will be heatedduring its travel through the coil and mud drum, since the coil and muddrum are disposed within the path of the products of combustion fromtubes 6 to the stack 22.

I am aware of the fact that it has been proposed heretofore to heat thefeed water by carrying said feed water through a coil or other heatingelement disposed within the path of the products of combustion and evencarrying the water through a coil disposed within a smoke box, but I amnot aware of the fact that it has ever been proposed to carry the feedwater through a coil so located with relation to the fire tubes that thecleaning of said tubes is not interfered with nor am I aware of the factthat any mud drum has ever been employed located in the smoke box andconforming to the shape of the side walls thereof so that the cleaningof the tubes is not interfered with while at the same time the mud drumis utilized as an additional heating element.

From the foregoing description it will be seen that simple and efficientmeans are herein provided for accomplishing the objects of theinvention, but while the elements shown and described are well adaptedto serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its purview such changes as may be madewithin the scope of the appended claims.

Having described my'invention, what I claim is:

1. A feed water heater for boilers comprising a spiral elliptical coillocated in the smoke box of the boiler and entirely above the line ofthe fire tubes thereof, but entirely below the entrance to the smokestack,

A drain pipe 19 leads V each succeeding lower coil being otgreaterlength than the one thereabove so that the coil is caused to completelyfill the smoke box above the line of the tubesand connections betweensaid coil and a source of Water supply and between said coil and theboiler.

2. A feed Water heater for boilers comprising a spiral elliptical coillocated in the smoke box of the boiler and entirely above the line ofthe fire tubes thereof, each succeeding lower coil being of greaterlength than the one thereabove so that the coil is caused to completelyfill the smoke box above the line of the tubes, connections between said0011 and a source of Water supply and betweensaid coil and the boiler,and

a mud drum supported at one side and inside ofthe smoke box but out ofthe line of the fire tubes and to which said coil is connected.

ln'testiniony whereof I aflix my signature Copies of this'p'atent may beobtained for fivecents each, byaddressing the Commissioner of Patents,'Wa'shington, 11:0.

